Recycle Coffee Grounds With Zero Impact: Japanese Koji Turns Waste Into Coffee Bars At Low Cost
Globally, we consume 10 billion kilograms of coffee a year and discard literally tons of leftover grounds. There are efforts to recycle them by converting the grounds into various products, such as cups, fabrics, printing inks and biofuels. However, since coffee grounds contain liquid, they require a drying process to be reused and end up releasing plenty of CO2 into the air.
https://www.forbes.com/sites/akikokatayama/2022/03/28/recycle-coffee-grounds-with-zero-impact-japanese-koji-turns-the-waste-into-delicious-coffee-bars-at-low-cost/?sh=5dc028333221